To receive settlement prices for Nordic products, the gateway
must be able to access the exchange’s FTP site via the exchange’s
File Delivery Service (FDS). For more information, refer to Support for Open, Close and Settlement
Prices.

Price Server Data Flow

The following
describes the data flow of the Price Feed connection from the Price Server
to the exchange.

The Price Server starts and reads configuration
values from the aconfig.xml file.

If applicable, the Price Server connects to the exchange’s
File Delivery Service (FDS) and downloads settlement prices for
Nordic products.

The Price Server queries the hostinfo.cfg file for the
Multicast Groups you wish to subscribe and established a unique
price session with the exchange.

The Price Server uses the connection information in the MulticastGroups.cfg
file to join the multicast for each subscribed product.

For each multicast group, the Price Server validates the
current sequence number from the exchange.

If a gap exists between the last sequence number recorded
by the Price Server and the sequence number provided by the exchange,
the Price Server requests the missing data from the exchange's Retransmission Server.